# 先导式减压阀，板式 - R4R / R4R\*P2 系列，管式安装 - R4R / R4R\*P2系列 > 派克R4R 系列管式先导式减压阀系列确保液压系统二次侧的压力恒定。S4R \* P2 系列可通过先导比例电磁铁进行连续调节。 所属技术：液压技术 ## 技术参数 | 参数 | 值 | 单位 | | --- | --- | --- | | 产品序列 | Pressure valve | | | 最大运行压力 | 接口A、B、X 350; 接口Y减压，“接口A、X 350; 接口B、Y 30 bar | | | 排水选件 | 由先导头部出来的外部排油管（Y1） | | | 启动类型 | Manual, Solenoid | | | 重量 | 3.2 - 8.4 kg | | | 最大流速 | N/A | | | 流速 | Depending on size, 60 - 450 L/min | | | 最高运行温度 | 60 °C | | | 最低运行温度 | '-20 °C | | | 密封材料 | NBR, FPM | | | 最大压力设置 | 350 bar | | | 安装类型 | Pipe mounting | | | 阀体材料 | Cast iron | | ## 型号入口（首批） - [026-20072-0](https://hypher.com.cn/products/model/026-20072-0-2615dc85940db9f5/index.md) - [R4R03-56112P2G0RB1](https://hypher.com.cn/products/model/r4r03-56112p2g0rb1-7bfd93fd8c31f589/index.md) - [R4R03-56132B1](https://hypher.com.cn/products/model/r4r03-56132b1-ec52c67b78e6ea92/index.md) - [R4R03-56142B1](https://hypher.com.cn/products/model/r4r03-56142b1-e64e686fe6a64ba5/index.md) - [026-20170-0](https://hypher.com.cn/products/model/026-20170-0-aa0a1e19ad9605c8/index.md) - [026-67426-G](https://hypher.com.cn/products/model/026-67426-g-765a2348bc3220b6/index.md) - [R4R03-56332B1](https://hypher.com.cn/products/model/r4r03-56332b1-5ee473cd60a38611/index.md) - [R4R03-56342B1](https://hypher.com.cn/products/model/r4r03-56342b1-cb99f3cc26954496/index.md) - [016-95986-0](https://hypher.com.cn/products/model/016-95986-0-b5b64eb6cff94fc3/index.md) - [056-40325-G](https://hypher.com.cn/products/model/056-40325-g-f779670b879e42b3/index.md) - [026-22648-0](https://hypher.com.cn/products/model/026-22648-0-f26014b744318ef3/index.md) - [R4R03-56532P2G0RB1](https://hypher.com.cn/products/model/r4r03-56532p2g0rb1-1c96b47b020b39e0/index.md) - [R4R06-56132B1](https://hypher.com.cn/products/model/r4r06-56132b1-e70bb190e3967d99/index.md) - [R4R06-56312B1](https://hypher.com.cn/products/model/r4r06-56312b1-f9fb217873d52381/index.md) - [R4R06-56512B1](https://hypher.com.cn/products/model/r4r06-56512b1-20e6edb34abe58b7/index.md) - [R4R06-56512P2G0RB1](https://hypher.com.cn/products/model/r4r06-56512p2g0rb1-5d3f7c26bb753b82/index.md) - [026-99810-0](https://hypher.com.cn/products/model/026-99810-0-97b0647efb67601a/index.md) - [R4R06-56532P2G0RB1](https://hypher.com.cn/products/model/r4r06-56532p2g0rb1-04ab04f5fe754ee5/index.md) - [056-40441-H](https://hypher.com.cn/products/model/056-40441-h-93577487bb52e287/index.md) - [026-20305-0](https://hypher.com.cn/products/model/026-20305-0-f77eac50cee47161/index.md) - [026-27625-0](https://hypher.com.cn/products/model/026-27625-0-b9f1eb358558efda/index.md) - [026-99262-G](https://hypher.com.cn/products/model/026-99262-g-2df7259adeb098ef/index.md) - [026-20217-0](https://hypher.com.cn/products/model/026-20217-0-db1f9ee376176c7b/index.md) - [R4R06-5D312B5](https://hypher.com.cn/products/model/r4r06-5d312b5-958d082a73810396/index.md) ## 技术资料与 CAD - [CATALOGUE - Hydraulic Valves Industrial Standard, Online Version--MSG11-3500/UK](https://www.parker.com/content/dam/Parker-com/Literature/Industrial-Systems-Division-Europe/Catalogues/Industrial-Valves-UK/MSG11-3500UK_Online.pdf)：document - [CATALOGUE - Pilot Operated Pressure Reducing Valve for In-line Mounting Series R4R](https://hypher.com.cn/library-assets/d5fa9ef5fdb09ff9d5160e9eb692c0288f6b189c5e30ebeee4163ffdd4f78ea5.pdf)：document - [CATALOGUE - Pilot Operated Proportional Pressure Reducing Valve for In-line Mounting Series R4R\*P2](https://hypher.com.cn/library-assets/d8012470cb0d42f8404abe5cce49405c98ae87ec1e3aa4883b3ddc0d24abd484.pdf)：document - [CERTIFICATE - DIN ISO 9001:2015 Certificate ISDE](https://www.parker.com/content/dam/Parker-com/Literature/Industrial-Systems-Division-Europe/Certificates/ISO_9001-ENG-10000407011-MSC-RvA-DEU-2-20260301.pdf)：document - [CERTIFICATE - Position Paper ISDE 2006/42/EC and EN ISO 13849](https://www.parker.com/content/dam/Parker-com/Literature/Industrial-Systems-Division-Europe/Certificates/Position_Paper-ISDE_2006-42-EG-and-EN-ISO-13849_EN.pdf)：document - [OPERATION MANUAL - Proportional Pressure Valves for External Electronics](https://hypher.com.cn/library-assets/44cc3f0170261d11c0c09cfa920dc3f0c22c4fee4d6b9283c92e3e56a0cd6bb3.pdf)：document - [Pilot Operated Pressure Reducing Valve Catalog - R4R\*P2 (North America)](https://www.parker.com/content/dam/Parker-com/Literature/hydraulic-valve-systems-division/hydraulicvalve/Catalog-sections-for-websphere/Proportional-Pressure-Control/R4R_P2-Inline.pdf)：document - [工业液压控制阀（下册）--23-08-A HYD-CH-852P-IHV](https://www.parker.com/content/dam/Parker-com/Literature/China/Support-2019/MSG/IND-Hydrualic/%E5%B7%A5%E4%B8%9A%E6%B6%B2%E5%8E%8B%E6%8E%A7%E5%88%B6%E9%98%80%EF%BC%88%E4%B8%8B%E5%86%8C%EF%BC%89.pdf)：document 资料来源：[原始系列资料](https://ph.parker.com/cn/zh/product-list/pilot-operated-pressure-reducing-valve-in-line-mounting-series-r4r-r4r-p2) 价格、库存和交期请联系上海海费确认。更多型号和资料见 [完整系列页面](https://hypher.com.cn/products/hydraulics/pilot-operated-pressure-reducing-valve-in-line-mounting-series-r4r-r4r-p2)；[联系技术支持](https://hypher.com.cn/contact)